parsing extended_event_descriptor to get really long epg descriptions

src/dvb/dvb_support.h

@@ -40,6 +40,7 @@
 #define DVB_DESC_SAT          0x43
 #define DVB_DESC_CABLE        0x44
 #define DVB_DESC_SHORT_EVENT  0x4d
+#define DVB_DESC_EXT_EVENT    0x4e
 #define DVB_DESC_SERVICE      0x48
 #define DVB_DESC_CONTENT      0x54
 #define DVB_DESC_TELETEXT     0x56

src/dvb/dvb_tables.c

@@ -384,6 +384,43 @@ dvb_desc_short_event(uint8_t *ptr, int len,
   return 0;
 }
 
+/**
+ * DVB Descriptor; Extended Event
+ */
+static int
+dvb_desc_extended_event(uint8_t *ptr, int len, 
+		     char *desc, size_t desclen,
+		     char *item, size_t itemlen,
+                     char *text, size_t textlen)
+{
+  int count = ptr[4];
+  uint8_t *localptr = ptr + 5, *items = localptr; 
+
+  while (items < (localptr + count))
+  {
+    /* get description -> TODO has to be appendend not just copied */
+    strncpy(desc, (char*)(items+1), items[0]);
+    desc[items[0]] = '\0';
+
+    /* get item -> TODO has to be appendend not just copied */
+    items += 1 + len;
+    strncpy(item, (char*)(items+1), items[0]);
+    item[items[0]] = '\0';
+
+    /* go to next item */
+    items += 1 + len;
+  }
+
+  localptr += count;
+  count = localptr[0];
+
+  /* get text */
+  strncpy(text, (char*)(&localptr[1]), localptr[0]);
+  text[localptr[0]] = '\0';
+
+  return 0;
+}
+
 
 /**
  * DVB Descriptor; Service
@@ -443,6 +480,9 @@ dvb_eit_callback(th_dvb_mux_instance_t *tdmi, uint8_t *ptr, int len,
 
   char title[256];
   char desc[5000];
+  char extdesc[5000];
+  char extitem[5000];
+  char exttext[5000];
   epg_content_type_t *ect;
 
   event_t *e;
@@ -545,6 +585,23 @@ dvb_eit_callback(th_dvb_mux_instance_t *tdmi, uint8_t *ptr, int len,
 	  epg_event_set_content_type(e, ect);
 	}
 	break;
+      case DVB_DESC_EXT_EVENT:
+        if(!dvb_desc_extended_event(ptr, dlen,
+              extdesc, sizeof(extdesc),
+              extitem, sizeof(extitem),
+              exttext, sizeof(exttext))) {
+          
+          char language[4];
+          memcpy(language, &ptr[1], 3);
+          language[3] = '\0';
+          int desc_number = (ptr[0] & 0xF0) >> 4;
+          //int desc_last   = (ptr[0] & 0x0F);
+          
+          epg_event_set_ext_text(e, desc_number, exttext);
+        }
+        break;
+      default: 
+        break;
       }
 
       len -= dlen; ptr += dlen; dllen -= dlen;

src/epg.c

@@ -150,6 +150,43 @@ epg_event_set_desc(event_t *e, const char *desc)
   epg_event_changed(e);
 }
 
+/**
+ *
+ */
+void epg_event_set_ext_desc(event_t *e, const char *desc)
+{
+  if(e->e_ext_desc != NULL && !strcmp(e->e_ext_desc, desc))
+    return;
+  free(e->e_ext_desc);
+  e->e_ext_desc = strdup(desc);
+  epg_event_changed(e);
+}
+
+/**
+ *
+ */
+void epg_event_set_ext_text(event_t *e, int ext_dn, const char *text)
+{
+  if (e->e_ext_text == NULL && ext_dn != 0)
+    return;
+  if (e->e_ext_text != NULL && strstr(e->e_ext_text, text))
+    return;
+
+  int len = strlen(text) + ( e->e_ext_text ? strlen(e->e_ext_text) : 0) + 1;
+  char *tmp = (char*)malloc(len);
+
+  if (e->e_ext_text)
+  {
+    strcpy(tmp, e->e_ext_text);
+    strcat(tmp, text);
+    free(e->e_ext_text);
+  }
+  else
+    strcpy(tmp, text);
+
+  e->e_ext_text = tmp;
+  epg_event_changed(e);
+}
 
 /**
  *

src/epg.h

@@ -61,6 +61,8 @@ typedef struct event {
 
   char *e_title;   /* UTF-8 encoded */
   char *e_desc;    /* UTF-8 encoded */
+  char *e_ext_desc;/* UTF-8 encoded (from extended descriptor) */
+  char *e_ext_text;/* UTF-8 encoded (from extended descriptor) */
 
   int e_dvb_id;
 
@@ -76,6 +78,10 @@ void epg_event_set_title(event_t *e, const char *title);
 
 void epg_event_set_desc(event_t *e, const char *desc);
 
+void epg_event_set_ext_desc(event_t *e, const char *desc);
+
+void epg_event_set_ext_text(event_t *e, int ext_dn, const char *text);
+
 void epg_event_set_content_type(event_t *e, epg_content_type_t *ect);
 
 event_t *epg_event_create(channel_t *ch, time_t start, time_t stop,

src/webui/extjs.c

@@ -699,6 +699,12 @@ extjs_epg(http_connection_t *hc, const char *remain, void *opaque)
     if(e->e_desc != NULL)
       htsmsg_add_str(m, "description", e->e_desc);
 
+    if(e->e_ext_desc != NULL)
+      htsmsg_add_str(m, "ext_desc", e->e_ext_desc);
+
+    if(e->e_ext_text != NULL)
+      htsmsg_add_str(m, "ext_text", e->e_ext_text);
+
     htsmsg_add_u32(m, "id", e->e_id);
     htsmsg_add_u32(m, "start", e->e_start);
     htsmsg_add_u32(m, "end", e->e_stop);

src/webui/static/app/epg.js

@@ -20,6 +20,12 @@ tvheadend.epgDetails = function(event) {
 
     content += '<div class="x-epg-meta">' + event.contentgrp + '</div>';
 
+    if(event.ext_desc != null)
+      content += '<div class="x-epg-meta">' + event.ext_desc + '</div>';
+
+    if(event.ext_text != null)
+      content += '<div class="x-epg-meta">' + event.ext_text + '</div>';
+
     content += '<div class="x-epg-meta"><a target="_blank" href="' + 
 	'http://www.imdb.org/find?q=' + event.title + '">Search IMDB</a></div>'
 	
@@ -81,6 +87,8 @@ tvheadend.epg = function() {
 	    {name: 'channel'},
 	    {name: 'title'},
 	    {name: 'description'},
+	    {name: 'ext_desc'},
+	    {name: 'ext_text'},
 	    {name: 'chicon'},
             {name: 'start', type: 'date', dateFormat: 'U' /* unix time */},
             {name: 'end', type: 'date', dateFormat: 'U' /* unix time */},